Factorio Forums

I noticed that in the Factoriopedia the pollution value of the boiler is described to be constant at 30/minute, not increasing with quality. Once I built an uncommon boiler, the value of the built boiler was at 39/min.

Thanks for the report. This is a side effect of the boiler consuming more fuel to produce more steam within the shorter time frame. The constant rate of pollution-per-energy produced is the same, just it's producing more energy in the same time frame and so more pollution. I don't know if we want to change the pollution display for this or call this a minor issue and leave it as is.

Thanks for the reply!
I can just say that I did not expect this behaviour because of the pollution-per-minute reading, I was not aware that it is actually programmed as pulltion-per-energy. I would not have built a higher quality boiler if I knew that.